<!DOCTYPE html>
<html>

<head id="all">
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width,initial-scale=1.0">
  <script src="https://apps.bdimg.com/libs/jquery/2.1.4/jquery.min.js"></script>
  <title id="t"></title>
  <meta name="keywords" content="">
  <meta name="Description" content="">

  <link rel="shortcut icon" href="" type="image/x-icon">
</head>

<body>
  <div id="app"></div>
  <!-- built files will be auto injected -->
</body>
<script>
  $(function () {
    $.ajax({
      type: "get",
      //后端的请求地址
      url: "http://localhost:8081/sys",
      dataType: "json",
      success: function (data) {
        if (location.href.endsWith("#/")) {
          $("title").html(data.title);
        }
        $("meta[name='keywords']").attr('content', data.keyWord);
        $("meta[name='Description']").attr('content', data.description);
        $("link[rel='shortcut icon']").attr('href', data.ico);
      },
      error: function (XMLHttpRequest, textStatus, errorThrown) {
        console.log("请求失败！");
      }
    });
  })
</script>

</html>